Expansible post binder



May 25,1943. F. 5. scHADE 2,320,101

EXPANSI'BLE POST BINDER Filed Sept. 24. 1942 INVENTOR fkq/m STA/v4 ErSal/A0:

ATTORNEYS Patented May 25, 1943 EXPANSIBLE POST BINDER Frank StanleySchade, Holyoke,

Mass., assignor to National Blank Book Company, Holyoke, Mass, acorporation of Massachusetts Application September 24, 1942, Serial N 0.459,515

3 Claims.

This invention relates to an improved loose leaf binder of the postbinder type. The main features of improvement are found in thecoordinated details of construction. By the new construction the bindercan be most conveniently manufactured at low cost and at the same timefurnish the binder in better form for use.

7 I will disclose by invention by the description of its preferred formshown in the drawing, in which Fig. 1 is a View in small scale of a unitof manufacture, generallyknown as a book binding case, consisting of twocovers, aback portion, and hinges joining covers and back portion;

Fig. 2 is a view showing two complementary parts to be assembled withthe material of Fig. r Fig. 3 shows a stick to be assembled with one ofthe parts of Fig. 2; Fig. 4 is a section on line 4-4 of Fig. 5; it showsan edge View of the parts of Figs. 1 to 3 assembled together after theyhave been worked up for that purpose, and this assembly view also showsadditional parts of Fig. 5 with the binding. posts in the assembly;

Fig 5 is a plan View of the Fig. 4 assembly indicating how some of theparts have been worked up for such assembly; and

Fig. 6 is a detail view to supplement Fig. 5.

The whole unit of Fig. l is made by known automatic case makingmachines. This unit commonly made by such machines is generally known asa binding case unit. It consists of two covers I and 2, joined by twohinges 3 and 4, to a back panel portion 5. It is customary to make theback panel and the covers,'each out of a panel of cardboard (to jointhese panels by a pasted cloth strip to form the hinges) and to paste asingle sheet 7, of decorative covering material, over the outside of allpanels, with edges 8 turned over and pasted down as indicated. Thissheet .l'helps form hinges but I omit the cloth hinge strip commonlypasted on the inside to cooperate with sheet I. I later providecooperating hinge strips as I will explain. The structure of Fig. 1, asI use it, consists only of the three cardboard panels I, 5, 2, and thesingle sheet 7 which joins them. The whole of it is formed on a casemaking machine.

I preferably make my unit of Fig. 1 the way just described on account ofits low cost and convenience. But I do not use the unit as a bookbinding case per se. And I proportion the back panel portion 5 of theunit so that when out in half longitudinally, each half is of a widthsuitable for aflange in my final assembly. When out in half on the line9, two hinged flange portions 5 and 5" are. made for coordinatedassembly with the parts of Fig. 2.

Duplicate parts, such as the right-hand part of Fig. 2, are madeoriginally as one unit just like the unit of Fig. 1, except fordimensions. Then suchunit is cut in half along the middle line of theback portion. parts, each consisting of the same structure as that shownat the right in Fig. 2. Its duplicate'is used for another book. Itconsists of panels 10 and I I, mainly of cardboard, hinged together by asingle sheet of covering material turned over the edges and pasted down.

The left-hand part of Fig. 2 consists of panel l2 mainly of cardboardwith a single sheet of covering material I3 as a backing'on it andextending beyond one long side. Sheet I3 is shown turned over the threesides of the cardboard and pasted down; the extension portion l5 ofsheet I3 is not shown turned at the edges. Its edges are not turneduntil the stick i l of Fig. 3 is applied.

The stick M with rectangular cross-section is applied flatwise againstextension portion l5 of sheet [3. Then the latter has its margins turnedover and pasted down on said stick. Then ortion I5, hinged to panel I2,is stapled or other wise made secure to flange 5'. The result isindicated in Fig. 4. A single cloth hinge strip 3, best shown in Fig. 5,is pasted on panell, across hinge 3 to reenforce and help make thathinge; strip 3 is pasted also on one side of panel 5, against the broadside of stick [4, or its covering; across the top edge of stick M,against the last broad side of the stick; across its hinge line, to helpmake and reenforce that hinge with panel l2; and against the inside faceof panel l2. A similar cloth hinge strip 4' is pasted against the insideface of panel In, panel II, to help make the hinge between these twopanels, preferably stapled together, over the top edges of panels II and5", down the inside face of panel 5" across its hinge line 4', to helpmake the hinge at that line, and finally pasted on the inside margin ofpanel 2, see Figs. 4 and 5.

At any convenient time the holes are made to mount binding posts I8.These are preferably plastic posts which can be nailed in stick I4 fromthe top,

From the drawing it will be seen that the portions 5" and 5" which wereoriginally made as parts of a book binding case, have by rearrangementbeen converted to hinged flanges, one for each cover I and 2. Thecomplementary parts of Fig. 2, one carrying the reenforcing stick M ofFig. 3, have been joined to flanges 5' and. 5". preferably by stapling,and in addition by pasting on the cloth hinge strips 3' and 4'. Theposts have been mounted in the flanges in the way indicated.

The final result, seen in Figs. 4 and 5, is an. expansible back postbinder. The posts |8-, being tubular, are of the expansible type. Thosecarried by the flange, reenforced by stick [4, are adapted to carryeither a comparatively small The result is two i The construction ofexpansible posts such as I8 is well known and I have not shown theirdetail. It will be understood that threaded ends of posts l8 maylengthen and shorten them. That is to say, the end of post l8, seen as[8 in Fig. 4, may be adjustably threaded into post i8 by a shank longenough, when turned in and out, to expand and contract the overall postlength when desired. Such construction per se is very well known. Thepost tubes 18' telescope with posts I8. panded or contracted by use ofslots 20 and buttons 21, the posts l8 may be lengthened or contractedaccordingly. The ends of posts l8 are seen at I8" in Fig. 6. Acircumferential slot, just back of the end of be straddled by keeperstrip 22. The latter has slots guiding it by means of the shanks ofrivets 23. It will be seen that telescoping posts 18 are carried bystrip 24. The latter with its posts is removable. It is normally held inplace by 3,

posts I8 entering the bore of tubes l8. When the ends of post tubes i8protrude through the right-hand flange, see Fig. 4, they are locked bysliding keeper strip 22, as in Fig, 6. In such a case post l8, with itshead er strip 22, is conveniently used to fasten the post-carrying strip24 in place. Other means for such a purpose could be used just so longas strip 24 is suitably mounted on the flange.

The binder disclosed is of low cost manufacture. It is adapted forequaling the efliciency in use of more expensive binders and, in respectto an additional hinging action for the postcarrying flanges, to improvethe effioiency for use. In my binder the flange with stick I4 can carryextended posts and a very thick pack, and it can hinge to lay the packflatwise on one cover while the posts are vertical and the book wideopen on a desk. This facilitates sheet arrangement work in the binderwhen the strip 24 is 7 applied with its posts and the whole is thenassembled with the right-hand cover on its flange, as already described.

It will be recognized that this new binder is one to be compared topresent-day commercial post binders of the expansible back type. Suchprior binders commonly have their two back portions and theirpost-carrying flanges made of very stiff sheet metal parts. monly nohinge between one flange and its adjacent back portion but the two partsmade up in permanent angle form. My new binder not only has the extrahinge, but the hinge construction is coordinated to help mount theflange and tie it into the binder construction. A general feature of mybinder is that it is particularly Well adapted to make without usingmetal. But its construction in respect to both cost and efficiency doesnot sacrifice anything by doing without metal. In fact, it is animproved binder compared to prior art metal ones.

I claim:

Thus, as the back panel is exeach post, is adapted to l8 engaged bykeep- There is com- 1. An expansible back post binder which consists incombination of cover portions having hinged marginal flanges, separateback portions having hinged marginal flanges, each back portion havingits marginal flange attached to the marginal flange of its adjacentcover whereby a composite laminated flange is provided for carrying'posts at each side of the binder, each said composite flange beinghinged both to its adjacent back portion and its adjacent cover, postscarried by said composite flanges, and means holding the two backportions for limited goontracting and expanding movements.

2. A binder construction which consists in combination of a stiff cover,provided with a hinged flange, a stiff back portion made like the coverand provided with a hinged flange, said two flanges being fastenedtogether in laminated arrangement with a reenforcing stiff stick ofnon-metallic material as wood to make a composite post-holding flange, asecond stiflf cover provided with a hinged flange, a second stiff backportion made like the cover and provided with a flange laminated andfastened to the flange of the second cover, the covers and back portionsand flanges of each being hinged together as aforesaid by strips offlexible material which are part of the same material making up theparts which are hinged together, posts mounted in said compositeflanges, guiding means adapted for controlling the back portions whenthey are moved relatively to expand and contract the capacity of thebinder.

3. A binder construction which includes in combination two covers andtwo flanges, each cover including a cardboard body and a single sheet offlexible covering material extended beyond one margin, each flangeincluding a cardboard body covered by the same single sheet as itextends from one of the covers, said material forming a flexible hingebetween each cover and one of the flanges, two back panels each madewith a cardboard body and a single sheet of flexible covering materialextending beyond one margin, two flanges each made of stiff material,

one flange bound to one back panel and one flange bound to the otherback panel, each one being bound by the covering material extendingbeyond its back panel whereby flexible hinges are provided between eachback panel and its at tached flange, one flange of one cover beingfastened in laminated formation to one flange of a back panel, and theother cover flange being fastened to the other back panel flange in thesame fashion, cloth binding and hinging strips, one for each cover andits fastened back panel, said strips being fastened on the cover,extending across its hinge line with the flange attached to such cover,extending over both sides and the top of the adjacent laminated flangeconstruction, across the hinge between such construction and adjacentback panel to form part of the hinge construction and finally againstthe back panel, the cloth strip being fastened down through suchextension to tie the parts together,

posts mounted on said laminated flange c'onstructions and said backpanels being adapted for sliding movements to increase and decrease thecapacity of the binder, all adapted to make a low cost and efficientexpansible back post binder.

FRANK STANLEY SCHADE.

